Amazfit GTR Smartwatch (Black Strap, 42mm)

5ATMBioTracker TM PPG Bio-Tracking Optical Sensor, 6-Axis Accelerometer, 3 Axial Geomagnetic Sensor, Air Pressure Sensor, Capacitive Sensor, Ambient Light Brightness Sensor320x320 pixelsUp to 34 daysBlack42mmAndroid, iPhonesWeather, Music, Event Reminder, Looking for a mobile phone, Stopwatch, Countdown